Product Summary

The 212 encoder HT12E is a series of CMOS LSI for remote control system applications. The HT12E capable of encoding information which consists of N address bits and 12N data bits. Each address/data input of the HT12E can be set to one of the two logic states. The programmed addresses/data of the HT12E is transmitted together with the header bits via an RF or an infrared transmission medium upon receipt of a trigger signal. The capability to select a TE trigger on the HT12E or a DATA trigger on the HT12A further enhances the application flexibility of the 212 series of encoders. The HT12E additionally provides a 38kHz carrier for infrared systems.

Parametrics

HT12E absolute maximum ratings: (1)Supply Voltage (HT12A) VSS: -0.3V to VSS+5.5V; (2)Supply Voltage (HT12E): -0.3V to 13V; (3)Input Voltage VSS: -0.3 to VDD+0.3V; (4)Storage Temperature: -50℃ to 125℃; (5)Operating Temperature: -20℃ to 75℃.

Features

HT12E features: (1)Low power and high noise immunity CMOS technology; (2)Low standby current: 0.1μA (typ.) at VDD=5V; (3)HT12A with a 38kHz carrier for infrared transmission medium; (4)Built-in oscillator needs only 5% resistor; (5)Data code has positive polarity; (6)Minimal external components; (7)Pair with Holtek 212 series of decoders; (8)18-pin DIP, 20-pin SOP package.

Diagrams

HT12E pin diagram

Image Part No Mfg Description Data Sheet Download Pricing
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HT12E
HT12E

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Data Sheet

Negotiable 
HT12ESO
HT12ESO

Other


Data Sheet

Negotiable